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Papers p 923 About 5-8% of children under the age of 5 have developmental impairments of speech and language. This proportion is higher than that for any other neurodevelopmental condition occurring at that age.1 Parents are concerned about these impairments, and the number of children being referred to speech and language therapy services is increasing.2 These impairments are characterised by a low level of speech and language skills. Such difficulties may occur secondary to disabilities such as cerebral palsy, sensorineural hearing loss, or autism. Impairment may also be the main symptom in a constellation of comorbid difficulties, such as challenging behaviour or otitis media.3 Although spontaneous remission of symptoms in primary speech and language disorders sometimes occurs many children will experience long term effects from these disorders. Studies of samples …
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James Law (2000) studied this question.
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